Instruments

Airspeed Indicator(ASI)

Definition

An instrument measuring indicated airspeed by comparing pitot (dynamic plus static) pressure with static pressure. Color-coded arcs show V-speed ranges: white (flaps), green (normal), yellow (caution), red line (VNE).

Related Terms

Pitot Tube

A forward-facing tube that measures dynamic pressure (ram air) used to calculate...

Static Port

An opening in the aircraft skin that senses ambient atmospheric pressure for the...

V-Speeds

Designated airspeeds important to the operation of an aircraft, typically shown ...

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